Finding the Third Proportional to 140,265 and 300,226.50

Step by Step Solution

1. Step 1: Write the proportion equation
   140,265 : 300,226.50 = 300,226.50 : x
2. Step 2: Convert to fraction form
   140,265/300,226.50 = 300,226.50/x
3. Step 3: Cross multiply
   140,265x = 300,226.50 × 300,226.50
4. Step 4: Simplify right side
   140,265x = 90,135,951,302.25
5. Step 5: Solve for x
   x = 90,135,951,302.25/140,265
6. Step 6: Final answer
   x = 642,611.85